CN220312078U

CN220312078U - Light path with switchable light beam state

Info

Publication number: CN220312078U
Application number: CN202322195717.3U
Authority: CN
Inventors: 章鹏; 李又强; 石睿; 王家捷
Original assignee: Ningbo Iii Lasers Technology Co ltd
Current assignee: Ningbo Iii Lasers Technology Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-01-09
Anticipated expiration: 2033-08-15

Abstract

The application relates to a light path with a switchable light beam state, which comprises a fixed seat, a wave plate component and a driving component, wherein the wave plate component is slidably arranged on the fixed seat; the driving assembly drives the wave plate assembly to slide, the wave plate assembly is provided with a first station and a second station, when the wave plate assembly is positioned at the first station, the wave plate assembly is right opposite to the emission port of the laser transmitter, and when the wave plate assembly is positioned at the second station, the wave plate assembly is staggered with the emission port of the laser transmitter. The wave plate component is driven to slide back and forth between the first station and the second station through the driving component, so that the state of the laser beam can be changed to adapt to different processing conditions of the workpiece.

Description

Light path with switchable light beam state

Technical Field

The application relates to the technical field of laser processing, in particular to a light path with a switchable light beam state.

Background

The laser processing technology takes laser as a heat source, fully utilizes the characteristics of high directivity, high power density and the like, melts a workpiece and forms small holes, cuts, welding seams and the like by different physical and chemical effects in the interaction process of laser beams with different powers and materials, and realizes the processing technology of welding, cutting, punching, marking, surface treatment, micro-processing and the like of the materials.

The laser processing apparatus generally includes a laser emitter capable of emitting a laser beam, a wave plate for changing a laser beam direction, a beam expander for expanding and collimating the laser beam, a total reflection mirror for adjusting a polarization direction of the laser beam so that the polarization direction of the laser beam coincides with a processing direction of the laser beam, a focusing mirror, and the like. In the prior art, the wave plate is usually fixed in the optical path of the laser processing device and remains stationary, so that the laser light emitted from the laser emitter and passing through the wave plate is always in one polarization state. However, in order to adapt to different processing conditions of the workpiece, it is often required that the laser beam can generate different states, and the installation condition of the wave plate fixed in the optical path obviously cannot meet the requirements.

Disclosure of Invention

In order to solve the problem that different light beam states cannot be generated when a wave plate is fixed in a light path, the application provides a light path with switchable light beam states.

The application provides a light path with switchable light beam state, which adopts the following technical scheme:

a light path with switchable light beam states comprises a fixed seat, a wave plate component and a driving component, wherein the wave plate component is installed on the fixed seat in a sliding manner; the driving assembly drives the wave plate assembly to slide, the wave plate assembly is provided with a first station and a second station, when the wave plate assembly is positioned at the first station, the wave plate assembly is right opposite to the emission port of the laser transmitter, and when the wave plate assembly is positioned at the second station, the wave plate assembly is staggered with the emission port of the laser transmitter.

Through adopting above-mentioned technical scheme, drive assembly drives the wave plate subassembly and slides on the fixing base level, makes wave plate subassembly can reciprocate between first station and second station, when the light beam of work piece needs different states is processed, through adjusting wave plate subassembly's station position to realize the change of the state of light beam, through above-mentioned structure, solved the unable problem of switching of laser beam state.

Optionally, the driving assembly comprises a mounting seat, a driving screw rod horizontally rotatably mounted on the mounting seat, a sliding block mounted on the driving screw rod and capable of sliding along the length direction of the driving screw rod, and a micro motor for driving the driving screw rod to rotate; the wave plate component is mounted on the sliding block.

Through adopting above-mentioned technical scheme, when light beam state needs to switch, order about micro motor to order about the rotation of drive lead screw, install the slider on drive lead screw and can slide along the length direction of drive lead screw to make the wave plate subassembly of installing on the slider slide along with the slider is synchronous, above-mentioned adoption micro motor and drive lead screw combination driven form, the process that the wave plate subassembly slided is comparatively stable.

Optionally, a plurality of guide rods are further arranged on the mounting seat, and the guide rods are arranged in parallel with the driving screw rod; the sliding block penetrates through the guide rod.

Through adopting above-mentioned technical scheme, when the slider slides along the length direction of drive lead screw, can slide along the length direction of guide bar simultaneously for the slider is difficult for deflecting at the in-process of sliding, has further improved the stability of wave plate subassembly in the in-process of sliding.

Optionally, the wave plate component comprises a wave plate, a frame for mounting the wave plate and a compression ring mounted on the frame for compressing the wave plate on the frame; the bottom of the glasses frame is also provided with a conversion seat which is connected with the glasses frame and the sliding block.

Through adopting above-mentioned technical scheme, the wave plate is glass material, installs the wave plate in the mirror holder to there is the clamping ring fixed, and the mirror holder can protect the wave plate, makes the wave plate be difficult for receiving the damage at the in-process of sliding.

Optionally, the mirror holder lateral wall wears to be arranged and is used for with the clamping ring locking in the locking knob of mirror holder, locking knob one end butt in the clamping ring.

Through adopting above-mentioned technical scheme, after the wave plate is installed on the mirror holder, compress tightly the wave plate through the clamping ring to adopt locking knob to lock the clamping ring on the mirror holder, the installation of above-mentioned wave plate is comparatively simple and convenient.

Optionally, the fixing base is provided with a sliding cavity for sliding the wave plate assembly and a fixing cavity for arranging the driving assembly; a sliding channel for sliding the conversion seat is arranged between the sliding cavity and the fixed cavity.

By adopting the technical scheme, the fixing seat is divided into two areas, one area is provided for the wave plate component to be used for horizontal sliding of the wave plate component, and the other area is provided for the driving component to be used for mounting of the driving component, so that the wave plate component and the driving component are not interfered with each other in the working process.

Optionally, a motor cover plate for covering the fixed cavity is arranged on the fixed seat.

Through adopting above-mentioned technical scheme, after the motor apron will fix the cavity lid, can be in the state of relative seal in the fixed cavity for the dust is difficult for entering into micro motor department, influences micro motor's normal use.

Optionally, a protection plate for covering the sliding cavity is further arranged on the fixing seat, and a light passing hole for passing laser is formed in the protection plate.

Through adopting above-mentioned technical scheme, the protection shield will slide the cavity lid and close for can be in the state of relative seal in the cavity that slides, play the effect of sealed light path.

Optionally, a first travel switch for stopping the wave plate assembly at a first station and a second travel switch for stopping the wave plate assembly at a second station are arranged on the mounting base.

Through adopting above-mentioned technical scheme, through setting up first travel switch and second travel switch for wave plate subassembly sliding motion can stop the motion to first station and second station, makes the wave plate can be with the better alignment of laser emitter's emission mouth.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving component drives the wave plate component to slide on the fixed seat, so that the wave plate component can be switched between the first station and the second station in a reciprocating manner, and the state of the laser beam is changed;

2. the wave plate component is driven to slide by adopting the micro motor and the driving screw rod, and the wave plate component is more stable in the sliding process by adopting the structure.

3. The fixing seat is divided into two cavities for sliding the wave plate component and mounting the driving component, so that the wave plate component and the driving component are not interfered with each other in the working process.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a light path with switchable light beam states in an embodiment of the present application.

Fig. 2 is an internal structural diagram of a light path with switchable light beam states in an embodiment of the present application.

Fig. 3 is a schematic structural view of a driving assembly according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a wave plate assembly according to an embodiment of the present application.

Reference numerals illustrate: 1. a fixing seat; 11. a slip cavity; 12. fixing the cavity; 13. a slip path; 14. a joint mounting hole; 2. a wave plate assembly; 21. a wave plate; 22. a frame; 221. mounting through holes; 222. a countersunk head groove; 223. a placement groove; 23. a compression ring; 24. a locking knob; 25. a conversion seat; 3. a drive assembly; 31. a mounting base; 311. a mounting base plate; 312. a rotating seat; 32. a micro motor; 33. driving a screw rod; 34. a slide block; 35. a guide rod; 4. a laser emitter; 5. a first travel switch; 6. a second travel switch; 7. a motor cover plate; 8. a protective plate; 81. and (5) a light passing hole.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a light path with a switchable light beam state.

Referring to fig. 1 and 2, a light path in which a light beam state is switchable includes a fixing base 1, a wave plate assembly 2, and a driving assembly 3. The wave plate component 2 is horizontally slidably mounted on the fixed seat 1, and the driving component 3 is fixed on the fixed seat 1 and used for driving the wave plate component 2 to horizontally slide. The wave plate component 2 is provided with a first station and a second station on the fixed seat 1, when the wave plate component 2 is positioned at the first station, the wave plate component 2 can be opposite to the emission port of the laser emitter 4, and laser passes through the wave plate component 2; when the wave plate assembly 2 is in the second station, the wave plate assembly 2 can be staggered with the emission port of the laser emitter 4, and laser light does not pass through the wave plate assembly 2.

Referring to fig. 2, the fixing base 1 is a square block. The fixing base 1 is provided with a sliding cavity 11 used for arranging the wave plate component 2, and the sliding cavity 11 penetrates through the front surface and the rear surface of the fixing base 1. The fixing seat 1 is also provided with a fixing cavity 12 for installing the driving component 3, and the fixing cavity 12 penetrates through the side wall of the fixing seat 1, which is far away from the laser emitter 4. A sliding channel 13 is arranged between the sliding cavity 11 and the fixed cavity 12.

Referring to fig. 2 and 3, the driving assembly 3 includes a mount 31, a micro motor 32, a driving screw 33, and a slider 34. The mounting seat 31 is mounted at the bottom of the fixing cavity 12 by screws, and the mounting seat 31 comprises a mounting bottom plate 311 and rotating seats 312 symmetrically arranged at two end parts of the mounting bottom plate 311. The driving screw 33 horizontally rotates the rotating seats 312 disposed at both ends of the mounting seat 31. The slider 34 is screwed to the drive screw 33 and is slidable along the longitudinal direction of the drive screw 33. One end of the driving screw 33 is connected with a micro motor 32, and the micro motor 32 can drive the driving screw 33 to rotate, so that the sliding horizontal sliding is driven.

Referring to fig. 2 and 3, in order to make the sliding movement on the mounting seat 31 of the slider 34 more stable, two guide rods 35 are further disposed on the mounting seat 31, two ends of the guide rods 35 are fixedly connected to the rotating seat 312, and the guide rods 35 are symmetrically disposed on two sides of the driving screw 33 and are parallel to the driving screw 33. The sliding block 34 is arranged on the guide rod 35 in a penetrating way, and when the micro motor 32 drives the sliding block 34 to slide, the sliding block 34 can slide along the guide rod 35 at the same time.

Referring to fig. 2 and 3, a first travel switch 5 is disposed at an end of the mounting seat 31 near the emission port of the laser emitter 4, and when the driving component 3 drives the wave plate component 2 to slide and butt against the first travel switch 5, the micro motor 32 is powered off to stop running, and the wave plate component 2 stops sliding and is located at the first station. A second travel switch 6 is arranged at one end, far away from the emitting port of the laser emitter 4, of the mounting seat 31, and when the driving assembly 3 drives the wave plate assembly 2 to slide and butt against the second travel switch 6, the micro motor 32 is powered off to stop running, and the wave plate assembly 2 stops sliding and is located at a second station.

Referring to fig. 2 and 4, the wave plate assembly 2 includes a wave plate 21, a mirror mount 22, and a pressure ring 23. The wave plate 21 is a circular plate, and is capable of passing a laser beam and changing the polarization state of the laser beam. The lens holder 22 has a mounting through hole 221 through which the laser beam can pass, and a circular countersunk groove 222 for mounting the wave plate 21 and adapting to the wave plate 21 is provided at one end of the mounting through hole 221 far away from the laser emitter 4. The pressing ring 23 is annular, an arrangement groove 223 for arranging the pressing ring 23 is formed in the notch of the countersunk groove 222, the outer diameter of the pressing ring 23 is equal to the diameter of the arrangement groove 223, and the inner diameter of the pressing ring 23 is equal to the diameter of the mounting through hole 221. The depth of the countersunk groove 222 is larger than the thickness of the wave plate 21, the wave plate 21 is arranged in the countersunk groove 222, and the pressing ring 23 is arranged in the arrangement groove 223 and presses the wave plate 21 to the bottom of the countersunk groove 222. The locking knob 24 is arranged on the outer peripheral wall of the lens frame 22 in a penetrating manner, the locking knob 24 is arranged in the arrangement groove 223 in a penetrating manner and abuts against the peripheral wall of the pressing ring 23, and the pressing ring 23 is locked in the arrangement groove 223 by tightening the locking knob 24, so that the wave plate 21 is not easy to shake in the countersunk head groove 222. The bottom of the wave plate component 2 is also provided with a conversion seat 25, one end of the conversion seat 25 is fixed on the sliding block 34 through a bolt, and the other end of the conversion seat 25 is fixed on the lens frame 22 through a screw. The conversion seat 25 is capable of sliding in the sliding channel 13 when the wave plate assembly 2 slides in the sliding cavity 11.

Referring to fig. 1 and 2, a motor cover plate 7 covering the fixed cavity 12 is installed on one side of the fixed seat 1 far away from the laser emitter 4, so that the fixed cavity 12 is in a relatively sealed environment, and dust is not easy to enter the micro motor 32 to influence the normal operation of the micro-communication motor.

Referring to fig. 1 and 2, a protection plate 8 covering the sliding cavity 11 is further installed on one side, far away from the laser emitter 4, of the fixing seat 1, a light passing hole 81 for a laser beam to pass through is formed in the protection plate 8, and the other side of the fixing seat 1 abuts against the laser emitter 4, so that the wave plate component 2 is in a relatively sealed environment, and a light path sealing effect is achieved.

Referring to fig. 2 and 3, a connector mounting hole 14 penetrating through the fixing cavity 12 is further formed in a side wall of the fixing base 1, which is close to the micro motor 32, and a connector for communication interaction with the micro motor 32 can be mounted in the connector mounting hole 14.

Referring to fig. 1 to 4, an implementation principle of XXX in the embodiment of the present application is: the driving screw rod 33 is driven to rotate through the micro motor 32, so that the wave plate assembly 2 arranged on the driving screw rod 33 is driven to slide in the sliding cavity 11, when the wave plate assembly 2 is abutted to the first travel switch 5, the wave plate assembly 2 stops at the first station, the wave plate 21 is opposite to the emission port of the laser emitter 4 at the moment, when the wave plate assembly 2 is abutted to the second travel switch 6, the wave plate assembly 2 stops at the second station, and the wave plate 21 is staggered with the emission port of the laser emitter 4 at the moment, so that the state of a laser beam is switched.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The light path with the switchable light beam state is characterized by comprising a fixed seat (1), a wave plate component (2) which is glidingly arranged on the fixed seat (1) and a driving component (3); the driving assembly (3) drives the wave plate assembly (2) to slide, the wave plate assembly (2) is provided with a first station and a second station, when the wave plate assembly (2) is positioned at the first station, the wave plate assembly (2) is opposite to an emission port of the laser emitter (4), and when the wave plate assembly (2) is positioned at the second station, the wave plate assembly (2) is staggered with the emission port of the laser emitter (4).

2. A light path with switchable beam conditions according to claim 1, characterized in that the driving assembly (3) comprises a mounting base (31), a driving screw (33) horizontally rotatably mounted on the mounting base (31), a slider (34) mounted on the driving screw (33) and capable of sliding along the length direction of the driving screw (33), and a micro motor (32) driving the driving screw (33) to rotate; the wave plate assembly (2) is mounted to the slider (34).

3. A light path switchable light beam state according to claim 2, characterized in that the mounting base (31) is further arranged with a plurality of guide rods (35), the guide rods (35) being arranged parallel to the drive screw (33); the sliding block (34) penetrates through the guide rod (35).

4. A switchable light path according to claim 2, characterized in that the wave plate assembly (2) comprises a wave plate (21), a frame (22) for mounting the wave plate (21), and a press ring (23) mounted to the frame (22) for pressing the wave plate (21) against the frame (22); the bottom of the frame (22) is also provided with a conversion seat (25) which is connected with the frame (22) and the sliding block (34).

5. The switchable light path according to claim 4, wherein a locking knob (24) for locking the pressure ring (23) to the frame (22) is arranged on a side wall of the frame (22), and one end of the locking knob (24) abuts against the pressure ring (23).

6. A light path with switchable beam state according to claim 4, characterized in that the holder (1) has a sliding cavity (11) for sliding the wave plate assembly (2) and a fixed cavity (12) for arranging the drive assembly (3); a sliding channel (13) for sliding the conversion seat (25) is arranged between the sliding cavity (11) and the fixed cavity (12).

7. A switchable beam path according to claim 6, characterized in that the holder (1) is provided with a motor cover (7) covering the holding cavity (12).

8. The light path switchable between the light beam states according to claim 6, characterized in that a protection plate (8) covering the sliding cavity (11) is further arranged on the fixing seat (1), and a light passing hole (81) for passing laser is formed on the protection plate (8).

9. A light path switchable light beam state according to claim 2, characterized in that the mount (31) is provided with a first travel switch (5) for stopping the wave plate assembly (2) in a first position and a second travel switch (6) for stopping the wave plate assembly (2) in a second position.

10. A switchable beam path according to claim 2, characterized in that the side wall of the holder (1) is provided with a joint mounting hole (14) for joint mounting capable of communicating with the micro motor (32).